Mining-machine truck



F. .CARTLIDGL -Mmmm MACHINE TRUCK. APPLICATION FILED OCT. IQ, I9-I7.

Patented Dec. 27, 1921.

F. CARTLIDG.

MINING MACHINE TRUCK. APPLicATloN FILED ocT. 10,'1911.

1,40 1 ,759, Patented Dee. 27, 1921.

l 2 SHEETS-SHEE 2- (machines, the samebeing` provided with/im- FRANK ycfin'rztinen, or cream/mur, new kngisiiarsrirnn; `Assre-non1-,To suntrvan MASSACHUSETTS.

Speeiication of Letterslatent. Dec. 2l?, 1.92.1.

Applicationled Octoocrl, 1917; Serial No. 1955,7"513a g proved andsimplified means whereby the loadingcor unloadingofthe mining machine is facilitated. A further object of my invention'is to provide a truck having animproved 'and'simplifiedloading and unloadling member adapted to `coperate automati- Y cally with the truck. andmining machine 'durngfthe movement of the latter toward or from the trucln'and adapted to -be Vreadily adjusted toward orffrom its operative lposition and carried during transport in a convenient position onV the truck. These and other objects and advantages 4of my improved construction will, however, hereinafter more fully appear.

,In the vaccompanying drawings, Il have .shown for purposes of illustration one embodiment which my invention may assume in practice, illustrating vthe same as applied -to a mining machine truck'of standard form. In 'these drawings,- Figure 1 is a side-elevation of a truck equipped with my improvement, a miningl machine being lshown in unloaded position with'respect thereto and about to be drawn thereon.V

:Fig. 2 is a sideelevation of the truck shown inFig. 1, the mining ,machine being illustrated as partiallyy loaded. f'

VlFigjZ?) is a iside elevation of thetruck lshown in Fig. 1, the mining machine being shown loaded and the loading and unloading member in position for transport'. A Fig. 54 is a plan view of the-truck,'the loading and unloading member 4being shown in full vlines in loading or unloading position and 'in dotted llines in transport position'.r Fig. 5 is a longitudinal sectionalview A,takenOnline---oflig 4;

Fig. 6 is a vdetail transverseise'ctional ,view takenon line 6-6 of Fig. 4. A i

Fig. Vis a transverse on line 7-7 of'Fig. 4.

In this illustrativey construction, it willbe notedV that I have shown a` standard-mule car or truck comprising the usual machine l 55 sectional yiewtaken guiding member 1, preferablyformed of Eupi' turned angle iron and mounted ontruck wheels 2 and 3, which arein turn movable over the rails'll, and thatA this truck is' illustrated as provided with a chain fork 5 adapted to receive thechain 6 of a self-propelled machine will bedrawn ontothe truck. j

A:Inmy improvemennitiwill be noted that the guidemembers ,1' of thetruck eXtenda substantial v distance-in front' of 'they` front wheels 2 and. are provided near their front ends and ontheir vertical flanges withl suitable oppositely disposed Vbrackets 8 Ihaving depending portions 9, and that inthese portions 9l is liournaled a transverse shaftlO ext-ending .acrossbeneathf the members v1. Upon this shaft-lO there are rotatably and releasably mounted, ait'points adjacent each i of the depending portions 9, v substantially U-shaped members llhaving arms 12 and 18 disposed on opposite'sides-'ofthe shaft 10, and longitudinally disposed supporting and guiding members '121 projecting" forwardly therefrom. As shown, these members 14 are preferably formed of inverted channel irons ffiXed' together or, if desired, to a smooth upper plate, .in such a manner' astoforma single,y rigid loading and .unloadingy member 15 adaptedto formamachine gniding extension of thetruck frame. yIt willalso be observed that thefrontends of' the vertical flanges of-lthe members 14 are preferably .cut-off, asshownfatf'l, in such a manneras `to enable these portionsto rest substantially -ilat'upon the mine bottom when themember 15 is vinl the position shown in -Fig.1'. VIt.

will alsoben'otedthat Ihaveprovided each 'of vthe members-11 with a vrearwardly eX- tending projectionv1'7, preferably Vhaving a flat surface 18 'on its end ladapted to len-V gagevwith the under .side off'the members l1 n, when the parts 'areiinf the positioni'llustrated in. Fig. `-1 and 'thus `hold` the member Y1'5V subymining machine 7 and. form4 an abutment Vwhereby as the machine is QfedV along the vchain the ses stantially rigid, one end of the saine resting` \upon the ground while the other end enand the member 15 is lifted and mcvcd bodily backward under the truck frame, as shown in "Fig 3. It will also be noted that closely adjacent the front wheels 2 l have also provided stops or supports 20 adapted to limit the rearward movement of the niem-V ber 15 and underlie the projections 17.

Thus, obviously, due to the combined action of the shaft 10. the support 19. and the stops or supports 20, the member 15 will be securely maintained in its inoperative position during transport.

ln considering the operation of a truck ofemy improved construction, let us iirst assume that it is desired to use the same in loading a machine, and that the parts occupy the position shown in Fig. 1. UbviouSfly, due to the location of the member 15, the same will then providean inclined surface over which the mining machine 7 'may ride when its motor is started, in such a manner as to cause it tobe fed along its chain 6, the rear end of which is attached to the chain fork 5. Due to the provision of the tapered front end 16 on the member 15, it will also be observed that the machine may very readily pass onto the member 15, and that, due to the provision of the low pivot for this member, the inclination'leading to the truck will be relatively gradual. Attention is also directed to the fact that, due to the provision of the portions 17, 18 on the members 11, a substantially rigid construction is provided which acts during the first few inches or more of movement of the mining machine to prevent or resist upward buckling of the parts about the pivotal connection between the truck body and thev eX- tension 15. due to the inward thrust at the opposite ends of the structure as a whole, thereby enabling the front ends of the member 15 to be inserted under the mining` machine before any flexure occurs in the joint between' Ythe member 15 and the truck. Asthe mining machine continues to travel up over the member 15, however, due to the weight of the machine the pivotal connection will obviously collapse, the rear end of the .truck being raised and the parts assuming the position shown in Fig. 2.' Obviously, the mining` machine kafter having j lpassed over the end of` the member 15, will also be heldelevated by that memberand thus deflected over the front end of the truck members 1 so that it may readily ride up those members on the then tilted truck. During this movement, the front end of the machine will rest upon its bar in a well known manner until the center of gravity of the machine has passed over the center of y gravity of the truck, whereupon the rear end of the latter will be lowered in such a manner as to bring the truck body and machine inte the transport position illustrated in 3. lNhen the machine has reached this position, the member 15 may readily be adjusted into its transport position, likewise shown in Fig. 3, by simply raising its inner ends in such a manner as to disengagethe 'members 12 from the shaft 10, and then bodily sliding the entire loading and unloading member over the shaft 10 into the position, shown in Fig. 3 with its rear end resting uponthe supports 20, whereupon the entire truck is ready for movement about the mine. ln unloading, after the member 15 by a reverse movement has again been moved to the position shown in Fig. 1, substantially the reverse of this operation takes place, although it will of course be understood that at that time the mining machine chain 6 is then connected toa point adjacent the'face so that the machine is moved in the oppositedirection. More specifically, it will be noted that' as the machine moves forward over the truck the weight of the same will depress thek front end of the truck in such a manner as again to make the member 15 assume the position shown in Fig. 2, and that as the machine passes farther off of the truck, the weight of the rear end of the truck will be suiiicient to return that end of the truck to the track and raise thefront end of the same and the member 15 into the loading position shown in Fig. 1, where the parts may remain until it is again desired to load the machine. l A f As a result of my improvement, it will be observed that it is possible to load and unload the machine with great facility and at ing member Yalso acts to decrease the anglev at which the truck frame is disposed relative to the ground during` theloadingor unloadl ing operation. lt will also be observedvthat my improved structure i is of exceedingly simple form, adapted tobe manufactured at offthe appended-claims.

fraai-159 V`very small expense and Iapplied j vv'it'h great ffa'c'ility. to mining vmachine '-truclrs -`'of any standard form "without fma'terial change ther-ein.V Thes'efand-other advantages ofmy -fimp'rove'ment will, fho-'ivevenfbe clearly ap- 4parent'to'those skilled inthe art. Y While 'I "liav'e vin vthis r'applidition specifically 4'described vone lf'emb'odime'nt which my v.invention zmay assume in practice, it Willbe `understoodthat this formV vof thesame v'is .shown vfor purposes of illustration, andfthat the invention maybe modiied'andfenibodied Vin various other forms v-ivithout departing from its spirit, it fleeing-my `intention fto linclude all such modicationswitlin the f'scope '-What 'I claim as'new andfde'sire to secure by Letters Patent-fis:l

11In a' mining 'machine truck, a V truck frame, 'and a machine' guiding extension pivotally connected thereto and forming Va collapsible joint therewith. i

sov

. 2. In a mining machine truclna truck frame, an inclined machine guiding member pivotally 'connecte-d thereto,"and operative connections `between said members for re-" 'sistino' movement thereof about the pivot.

givotally connected theretoand forming a' c ownwardly collapsible joint therewith, said parts having provision for resisting upward collapse of said joint.

6. In a mining machine truck, al truck frame, an inclined machine guiding eXtension pivoted thereto, and means on the rearward end of said extension for limiting the upward movement thereof.

7 In a mining machine truck, Va truck frame, an inclined machine guiding exten- Asion pivoted thereto, and means forming a projection on said extension extending be-A neath said frame andadapted to engage the same.

8. In a mining machine truck, a truck frame, an inclined machine guiding extension, and means for pivotally connecting the same at a point beneath the front end of said frame.

9. In a miningmachine truck, a truck frame, a pivotally connected inclined machinev guiding extension, and supporting means for said extension disposed beneath said frame and having one of its elements forming a pivot therefor.

10. In a mining machine truck, a truck iframe, an nrclinenimmt-ineguidinginitialiser, fand mean's whereby as la, ad iisdrawn [over said lmember' the latter iis depresselliard 's'aidframetilt'ed." i 'l ["1'21; I'n la mining lima'chineftruck, a truck name, and an u'1iloadin-g A'membernormany I fd'ilsposed `beneath"saii'd framev "and bodily Vmovablelongitudinally intooperative :Irelation in front of-'fthe same fand an angle relative'thereto` i l' i112; iIn y5am-mining machine Itruck,--a-truck iframe, a machine Y'guiding `extension""dlisil'osed y:at afn anglejtov"the 'h'o'rizontah and v'means Whereby'fsaid vmember may-'be bodily ir'eeiprocated' into transport vpasiti'onffbeneath said frame.

'frame, a imachinefguid-ng'extension piw'fotally connected thereto',y and means *whereby .13.` In. a mining :machine-'truck truck l ysaid member may be 'disengagedf'therefremie and reciprocated-into''inoperative position 4beneath "said frame. l Y Y 121.` lIn a mining machine truck, a'ivheeled truck'frame having' `its `front end extending a (Substantial dlStUflce in fron'tof--its Wheels,

a machine 'guiding Vmemberpivota'llyl connected at a point beneath saidfront end, and means for supporting said member in telescopic position beneath the front end of said frame. Y Y c 15. In a mining machine truck, a Wheele truckframe, means forming pivot members disposed at the front end of said frame at a substantial distance in front lof the truck Wheels, anda machine guiding member having an elevated rear end pivoted on saidV pivot members anda front ground-engaging end, vsaid member having'means on its rearAk end engageable with a. portion of the truck when said machine guiding member is disposed at an angle with respect to the ground.

16. Ina mining machinetruck, a Wheeled truck frame, means forming pivot members disposed beneath the front end of said frame at a substantial distance in front of the truck Wheels, a machine guiding member having a front ground-engaging end and having means on its rear end engageable with a portion of the truck When said machineV guiding member is disposed at an angle with respect to the ground, and coperatingmeans for supporting said -member beneath the front end of said truck when the frontend of the saidmember is liftedand is shifted bodily rearward.

17. In an apparatus'of the ,character described, the combination with a truck structure comprising av frame member and `an.

the same Y ios L inclined guiding member -pivoted thereto adjacent one endl thereof, of. loading means adapted to cause thrust to be exerted upon v said members respectively in opposite direo- Y tions ltoward the pivot, said" structure having provision for resisting relative movement of said members about said pivot to decrease the dihedral angle formed between the lower sides 0:?- said frame member and yingi'eeding meansincluding a feeding member adapted to be secured to said truck frame 'adjacent its rear end, and means for preventing upward .Y movementv ci said Jframe and extension about their pivotal connection when said machine vis drawn into engagement with' the forward end of said extension by said guiding means. v

19.*A mining machine truck comprising a pair of machine guidingelements adapted tov be angularly disposed relative vto peach other when in position for a mining machine to be loaded on said truck, one end of one of said members being adaptedv to be engaged beneath the front of the mining machiney and the remoteend of the'other having meansfor the vconnection-of a vmemf inerme machine onto said truck, kand means for limiting the angle formed by the planes oi the upper sides of said elements. Y

l; A mining machine truck comprising a plurality of pairsof wheels,means ttor loading a mining machine into position for transporten said wheels and for supporting it thereon comprising a plurality ofpiv otaliy connected machine guiding members one of which is adapted to be initially engaged by a mining machine as it moves onto the vtruck and to the other of which means for hauling the machine onto the truck may .be connected at'the oppositeend thereof, one

of said. pairs of wheels being nearerthey pivotal connection between said membersy than the other, and means operativeto prevent the elevation oli". the lground of the pair of wheels nearer said pivot during loading of a machine'onto the truck comprising means for preventing the angle `between the planes of the bottoms of said members becoming less .than ay predetermined minimum;

In testimony whereof I aiiX my signature.

FRANK CARTLIDGE. 

